MongoDeleteAll (Function)

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MongoDeleteAll (Function)

In french: MongoSupprimeTout

Deletes all the documents (corresponding to the specified filter) from a collection of a MongoDB database.

Versions 24 and later

This function is now available for WINDEV applications in Linux.

This function is now available for WEBDEV sites in Linux.

New in version 24

This function is now available for WINDEV applications in Linux.

This function is now available for WEBDEV sites in Linux.

This function is now available for WINDEV applications in Linux.

This function is now available for WEBDEV sites in Linux.

Example

sFilter is string
sFilter = "{ ""name"": ""Andy"" }"
MongoDeleteAll(CollectMDB, sFilter)

// Delete all the contacts whose "FirstName" member is "Robert"

// Search filter
sFilter is string = "{ ""FirstName"": ""Robert"" } "

MongoDeleteAll(gclCollection, sFilter)

Syntax

<Result> = MongoDeleteAll(<Collection> , <Filter>)

<Result>: Boolean

True if the operation was performed,
False if a problem occurred. ErrorInfo is used to identify the error.

<Collection>: mongoCollection variable

Name of mongoCollection variable representing the collection of the MongoDB database from which the deletion is performed.

<Filter>: Type corresponding to the filter used

Description of filters in MongoDB format that will be applied to select the documents to delete. This filter corresponds to:
a document in JSON format, in character string format.
a document in BSON format, in buffer format.
a variant.

Related Examples:

Unit examples (WINDEV): Native access to MongoDB

[ + ] This example shows how to use the main functions of native access to MongoDB databases: adding data, reading (searching), modifying and deleting data in the database. The example also shows functions for saving files in the MongoDB GridFS data system.

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